Journal of Engineering for Gas Turbines and Power: Recent submissions
Now showing items 241-260 of 9564
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A Thermal Model for a Hybrid Gas Bearing System in Oil-Free Turbochargers
(The American Society of Mechanical Engineers (ASME), 2024)With little drag friction, gas bearings operate at high rotor speed and high temperature and thus enable long operating life along with material damping for mechanical energy dissipation. However, most computational tools ... -
Complete Dynamics From Ignition to Stabilization of a Lean Hydrogen Flame With Thickened Flame Model
(The American Society of Mechanical Engineers (ASME), 2024)In recent years, attention has been paid to hydrogen thanks to its carbon-free nature and its interesting characteristics as an energy vector. Despite the large number of numerical analyses regarding hydrocarbon combustion ... -
Prognostics and Health Management for Electrified Aircraft Propulsion: State of the Art and Challenges
(The American Society of Mechanical Engineers (ASME), 2024)In recent years, the aviation industry has witnessed a transformative wave of innovation in electrified aircraft propulsion (EAP), driven by sustainability and efficiency goals. Integration of novel electrical subsystems, ... -
Experimental Design Validation of a Swirl-Stabilized Burner With Fluidically Variable Swirl Number
(The American Society of Mechanical Engineers (ASME), 2024)Swirling flows are commonly used for flame stabilization in gas turbine combustors, which are hence equipped with suitable swirler units. In these units the air rotation, quantified by the swirl number, is fixed through ... -
An Efficient Uncertainty Quantification Method Based on Inter-Blade Decoupling for Compressors
(The American Society of Mechanical Engineers (ASME), 2024)A compressor usually contains multiple blade rows, and its uncertainty dimensionality grows proportionally with the number of blade rows, leading to a rapid increase in required sample size for uncertainty quantification ... -
Numerical Investigation of CO and NO Production From Premixed Hydrogen/Methane Fuel Blends
(The American Society of Mechanical Engineers (ASME), 2024)There is significant interest in utilizing hydrogen as an energy carrier in a net-zero carbon energy economy. A variety of fundamental and practical issues associated with premixed hydrogen/methane combustion must be ... -
Development of a Virtual Chemistry Reaction Mechanism for H2/CH4 Turbulent Combustion Modelling
(The American Society of Mechanical Engineers (ASME), 2024)The identification of the combustion model is always guided by the compromise between accuracy and computational cost. While species transport models offer accuracy, their computational cost requirement can become prohibitive, ... -
Reviewer's Recognition
(The American Society of Mechanical Engineers (ASME), 2025)The Reviewers of the Year Award is given to reviewers who have made an outstanding contribution to the journal in terms of the quantity, quality, and turnaround time of reviews completed during the past 12 months. The prize ... -
Foreign Object Damage of Environmental Barrier Coatings Subjected to CMAS Attack
(The American Society of Mechanical Engineers (ASME), 2025)Foreign object damage (FOD) and attack by calcium–magnesium–aluminosilicates (CMAS) have been identified as two key damage and failure mechanisms in environmental barrier coatings (EBCs), which are being developed as an ... -
The Hybrid Pathway to Flexible Power Turbines, Part III: Enabling Live Thermal Boundary Prediction Using Real-Time Plant Measurements and LSTM Neural Networks
(The American Society of Mechanical Engineers (ASME), 2025)The global drive toward renewable energy is imposing challenging operating requirements on power turbines. Flexible load-leveling applications must accept more frequent and demanding start-stop cycles. Full transient ... -
Creep Properties of Nickel Alloys—Comparison Between Conventional and Laser Powder Bed Fusion Manufacturing Routes
(The American Society of Mechanical Engineers (ASME), 2025)Metal laser powder bed fusion (PBF-LB/M) is a commonly used additive manufacturing process for gas turbine parts. This manufacturing method allows for small quantity batches with complex part designs. The mechanical behavior ... -
Investigation of Grooved Front Plate for Inlet Swirl Reduction in Brush Seals
(The American Society of Mechanical Engineers (ASME), 2025)Brush seals are plausible replacements for conventional labyrinth seals in gas turbine internal air systems. They can offer superior leakage performance due to their compliant nature and reduced effective clearance during ... -
Experimental Investigation of Particulate Emissions From an Ammonia-Fueled Internal Combustion Engine
(The American Society of Mechanical Engineers (ASME), 2025)Ammonia combustion is a topic of active research due to the need for fuel decarbonization. Although ammonia does not contain carbon, its use in internal combustion engines (ICEs) may still form nitrogen-containing ultrafine ... -
Characterization of Crankcase Ventilation Gas on Stationary Natural Gas Engines
(The American Society of Mechanical Engineers (ASME), 2025)Natural gas stands out as a prominent alternative fuel, boasting a well-established infrastructure for extraction and transport, substantial cost advantages, and potential for mitigating greenhouse gas (GHG) emissions. Its ... -
Multifidelity Optimization of Turbulence in a Gas Turbine Combustor Simulator
(The American Society of Mechanical Engineers (ASME), 2025)Combustor turbulence in a gas turbine engine greatly influences the efficiency of the downstream high-pressure turbine stage. Here we use a multifidelity computational optimization methodology to modify the geometry of a ... -
Modeling and Performance Analysis on an Integrated System Combining Supercritical Carbon Dioxide Brayton Cycle With Leakage Feedback Utilizing a Heat Pump or Direct Compression
(The American Society of Mechanical Engineers (ASME), 2025)CO2 leakage due to the coexistence of pressure differentials and clearances within the integrated turbine-alternator-compressor (TAC) of the kW-level sCO2 Brayton cycle is a key issue affecting cycle efficiency and long-term ... -
High-Temperature Industrial-Scale CO2 Heat Pumps: Thermodynamic Analysis and Pilot-Scale Testing
(The American Society of Mechanical Engineers (ASME), 2025)Electrification of heat-generating processes is a key means to decarbonize industrial emissions, and heat pumps significantly improve the efficiency of electrified heat. Carbon dioxide is one of the oldest known heat pump ... -
Data-Driven Approach for Predicting Vibration Response of Bladed Disks With Geometric Mistuning
(The American Society of Mechanical Engineers (ASME), 2025)Deviations in the bladed disk manufacturing, such as uneven thickness, surface roughness, or sinkholes in casted wheels, can cause geometric mistuning and result in vibration amplification, severely decreasing reliability. ... -
Methanol Operation in Heavy-Duty DICI Dual-Fuel Engines: Investigating Charge Cooling Effects Using Engine Combustion Network Spray D Data
(The American Society of Mechanical Engineers (ASME), 2025)Methanol is a promising alternative fuel, which can assist in reducing emissions in heavy-duty (HD) dual-fuel (DF) compression ignition (CI) engines. In medium and large bore marine engines, DF operation is achieved through ... -
The Hybrid Pathway to Flexible Power Turbines: Part IV, Automated Construction of Mesh Derived Thermal Network Models for Fast Full-Machine Thermal Analysis
(The American Society of Mechanical Engineers (ASME), 2025)The global drive toward renewable energy is imposing challenging operating requirements on power turbines. Flexible load-leveling applications must accept more frequent and demanding start-stop cycles. Full transient ...